add depends_on and restart directives

conf/docker-compose.yml

@@ -9,6 +9,8 @@ services:
       - "8888"
     links:
       - "tt.nc_mysql_db"
+    depends_on:
+      - "tt.nc_mysql_db"
     external_links:
       - "tt.front"
     volumes:
@@ -25,6 +27,7 @@ services:
       - DB_HOST=tt.nc_mysql_db
       - TZ=Europe/Paris
       - DOMAIN=files.talentstube.io
+    restart: always
 
   # https://hub.docker.com/_/mysql/
   tt.nc_mysql_db:
@@ -37,3 +40,4 @@ services:
       - MYSQL_DATABASE=nextcloud
       - MYSQL_USER=nextcloud
       - MYSQL_PASSWORD=*u;8k7W<V6n/(Qa9
+    restart: always